Wad is a generic name for poorly crystalline, soft manganese oxides/hydroxides, often containing significant amounts of hydroxides/oxides of other adsorbed metals such as nickel, cobalt, copper and iron and other transition metals, as well as alkali elements. Sample is from Neunkirchen, Westphalia, Germany, actual width 130 mm. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5616 px × 3744 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |